Home / 83,145.22-114,742.65-49,630.66

Finding the Fourth Proportional to 83,145.22, 114,742.65 and 49,630.66

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Solution

The fourth proportional to 83,145.22, 114,742.65 and 49,630.66 is: 68,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,145.22 : 114,742.65 = 49,630.66 : x
  2. Step 2: Convert to fraction form
    83,145.22/114,742.65 = 49,630.66/x
  3. Step 3: Cross multiply
    83,145.22x = 114,742.65 × 49,630.66
  4. Step 4: Simplify right side
    83,145.22x = 5,694,753,449.65
  5. Step 5: Solve for x
    x = 5,694,753,449.65/83,145.22
  6. Step 6: Final answer
    x = 68,491.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.